A couple weeks ago I ran a marathon in Nike Zoom Streak XC 2s, which I had been training in but hadn't run a marathon in before. The following day, I noticed a dull pain in my foot between the third and fourth toes. I took about a week off after the race, then started running again; the pain has stayed pretty consistent. I don't really notice it while running, but feel it afterward, and the following morning.
I've isolated the pain to the top side of my foot between my third and fourth toes (it hurts to press on it from the top, but not from the bottom, and the toes are not in pain). I've seen posts about metatarsal stress fractures, but I'm assuming this would be in the actual toe. Any ideas what this might be?